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Tom [10]
3 years ago
10

Robert says 12 divide by 3//4 = 9. He used the following steps: 12/1 × 3/4 = 36/4 What error did Robert make? A. Robert used sub

traction rather than multiplication. B. Robert used addition rather than multiplication. C. Robert forgot to find the reciprocal of before multiplying. D. Robert forgot to find the reciprocal of before multiplying.
Mathematics
1 answer:
wlad13 [49]3 years ago
8 0

Answer:

C and D are the same answers but one of those.

Step-by-step explanation:

Um, I got what Robert got, so by process of elimination, it must be C or D. I used multiplication, so it wasn't subtraction or addition. Meaning whatever a reciprocal is, I didn't do that.

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el precio del kilogramo de jitomate es de 36.50 juana compro 3 1/2 kilogramos cuanto pago por todo el jitomate?​
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El precio total por 3 1/2 kg de jitomate que compró Juana es 127.75

Para saber el precio total de los 3 1/2 kg de jitomate que compró Juana debemos hacer el siguiente procedimiento.

Necesitamos saber cuánto vale medio kg de jitomate, para ello dividimos 36.50 en 2.

36.50/2 = 18.25

Luego multiplicamos 36.50 por 3, para saber cuánto valen 3 kg de jitomate.

36.50 X 3 = 109.5

Por último, sumamos el precio de medio kilo con el precio de tres kilos para tener el total que pagó Juana.

109.5 + 18.25 = 127,75

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